Monster Mash! On Sunday, Aug. 2, Teen Mom 2 star Jenelle Evans threw a big bash for her son Jace's 6th birthday. The reality star's little boy rang in his milestone day with a zombie-themed party from his famous mom.

"Thank you @isabellascreations for this awesome zombie cake Jace loved it !! My baby turns 6 today! #happybirthdayjace," the MTV star captioned a shot with her son posing next to his green zombie cake that featured a brain, severed foot, and eyeball.

All of the guests were treated to eyeball cakepops and sang to the birthday boy as he blew out the candles on his cake. The kiddos then went to Defy Gravity for some trampoline fun, throwing plastic balls at each other.

Barbara currently has custody of Jace and she and Jenelle are trying to work out an agreement so Jenelle can take over sole custody of the little boy again. Their ongoing battle has been documented on this season of Teen Mom 2.

Not pictured at the event was Jenelle's fiance, Nathan Griffith. Jenelle, whose relationship with Griffith has involved several arrests and splits, didn't mention his absence in her posts, but her engagement ring was noticably missing.